GE L30

GE Multilin L30 Line Current Differential System 9-9
9 APPLICATION OF SETTINGS 9.3 CHANNEL ASYMMETRY COMPENSATION USING GPS
9
2. Set the 87L element with different differential settings for Settings Groups 1 and 2 as shown below
3. Enable GPS compensation when the GPS signal is valid and switch to Settings Group 2 (with more sensitive settings)
as shown below.
831778A1.CDR
17
87L DIFF 1 MAX ASYM
18
NOT
19
87L DIFF GPS FAIL
20
NOT
21
AND(2)
AND(2)
22
87L DIFF 1 MAX ASYM
23
87L DIFF GPS FAIL
24
OR(2)
OR(2)
25
TIMER 3
26
LATCH
Reset
Set
LATCH
27
= GPS ON-GR.2 (VO2)
= GPS ON-GR.2 (VO2)